Process of separating halogenated dioxins and furans from exhaus

Details Process of separating halogenated dioxins and furans from exhaus Process of separating halogenated dioxins and furans from exhaus

1993-09-10

1995-08-08

Chiesa, Richard L.

Gas separation: processes

Electric or electrostatic field

With addition of solid, gas, or vapor

95 69, 95 71, 96 52, 96 57, B03C 3013

Patent

active

054395089

ABSTRACT:
For the separation of dioxins and furans from exhaust gases from combustion plants, particularly from refuse incinerating plants, a process is described in which the dust and the gaseous pollutants HF, HCl, SO.sub.2, and SO.sub.3 are first substantially entirely separated from the exhaust gases in known manner, the thus prepurified exhaust gas is then supplied to a wet-process electrostatic precipitator, and 10 to 500 mg activated carbon powder per sm.sup.3 are added to the prepurified exhaust gas immediately before it enters the wet-process electrostatic precipitator.

REFERENCES:
patent: 1331225 (1920-02-01), Wolcott
patent: 1413993 (1922-04-01), Rhodes
patent: 2746564 (1956-05-01), Williams
patent: 3212878 (1965-10-01), Bouteille
patent: 4006066 (1977-02-01), Sparwald
patent: 4141697 (1979-02-01), Albanese
patent: 4874400 (1989-10-01), Jury
patent: 5137546 (1992-08-01), Steinbacher et al.

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